US6761967B2 - Prefabricated external reinforcement plate for structural members - Google Patents

Prefabricated external reinforcement plate for structural members Download PDF

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Publication number
US6761967B2
US6761967B2 US10/169,105 US16910502A US6761967B2 US 6761967 B2 US6761967 B2 US 6761967B2 US 16910502 A US16910502 A US 16910502A US 6761967 B2 US6761967 B2 US 6761967B2
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US
United States
Prior art keywords
reinforcement plate
fibers
resin
reinforcement
external reinforcement
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Expired - Lifetime
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US10/169,105
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English (en)
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US20020193025A1 (en
Inventor
Dirk Christiaan Jozef Isidoor De Neef
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Ecc NV
Immo Emergo NV
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Immo Emergo NV
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Assigned to IMMO EMERGO, NAAMLOZE VENNOOTSCHAP reassignment IMMO EMERGO, NAAMLOZE VENNOOTSCHAP ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DE NEEF, DIRK CHRISTIAAN JOZEF ISIDOOR
Publication of US20020193025A1 publication Critical patent/US20020193025A1/en
Assigned to IMMO EMERGO, NAAMLOZE VENNOOTSCHAP reassignment IMMO EMERGO, NAAMLOZE VENNOOTSCHAP CORRECTIVE ASSIGNMENT TO CORRECT THE SPELLING OF THE ASSIGNEE'S ADDRESS PREVIOUSLY RECORDED ON REEL 013292 FRAME 0228. Assignors: DE NEEF, DIRK CHRISTIAAN JOZEF ISIDOOR
Priority to US10/837,594 priority Critical patent/US20040202852A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
    • Y10T428/24124—Fibers
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    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
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Definitions

  • the present invention relates to an external reinforcement for beams, columns, plates and the like, more particularly a reinforcement which allows to increase the maximum permissible load of existing beams, columns or the like, made of wood, concrete, metal or another material.
  • external reinforcements consist of, for example, a steel sheet, whereby this latter is attached to such construction by means of glue, bolts or the like.
  • reinforcement consists of a plate formed of fibers, such as, for example, carbon fibers, glass fibers or aramide fibers, which are embedded in a resin.
  • such reinforcement is provided in a continuous process, for example, by pultrusion.
  • Another disadvantage of the known external reinforcements is that the surface thereof is very smooth as a result of the production method of such plates, as a result of which the adherence thereof on a construction to be reinforced is rather small, such that, in order to improve such adherence, this surface generally is treated with the intention of roughening it, for example, by sandblasting, scouring or treating it in another manner, which, however, is very labour-intensive. Moreover, the fibers may be damaged by such treatment, as a result of which the strength of the reinforcing plate is reduced.
  • the present invention thus has an external reinforcement as its object which excludes the aforementioned and other disadvantages of the known additional reinforcements and which has as its most important purpose to allow for a better adherence and connection between the external reinforcement and the column, beam or such to be reinforced.
  • the invention also aims at such external reinforcement which can be realized thicker at the locations where the largest tensile and/or pressing forces occur.
  • an external reinforcement comprising in the combination of fibers and a resin, whereby the majority of the fibers is situated in the longitudinal direction of the reinforcement and whereby at least well-defined portions of the external reinforcement are provided with an additional reinforcement formed by fibers which are arranged according to at least one direction differing from the longitudinal direction of the reinforcement.
  • the aforementioned fibers in the external reinforcement may consist of glass fibers, carbon fibers, aramide fibers or natural fibres, such as hemp, flax, cocos, or a combination of such fibers, whereas the resin preferably is an epoxy resin, a vinyl ester resin, a polyester resin or another suitable kind of resin.
  • a plate-shaped external reinforcement will be realized whereby not only the majority of the fibers is situated in the longitudinal direction of the external reinforcement, which also is the direction in which a tensile force will be exerted upon the external reinforcement, but moreover, according to the invention, an additional reinforcement is provided, at least in well-defined portions of the external reinforcement, by adding fibers which are situated in at least one direction other than the longitudinal direction of the external reinforcement.
  • the thickness of the external reinforcement may be variable in the longitudinal direction thereof in order to strengthen the reinforcement at the locations where the tensile and/or pressing forces are the largest, for example, in case of an external reinforcement for a beam, in the middle of the length of the beam.
  • the fibers in the aforementioned well-defined parts are directed such that they cross each other, such that, when drilling through the external reinforcement, the tensile and/or pressing forces are transferred to other reinforcement fibers, which allows for a mechanical anchoring of the external reinforcement to the material to be reinforced, by means of screws, bolts and such.
  • the external reinforcement can take up forces which are not directed according to the longitudinal direction of the material to be reinforced.
  • the external reinforcement Before being applied on site, the external reinforcement can be provided at one or both sides with a fabric with poor adherence, which fabric, when removed, leaves an impression on the external reinforcement.
  • the aforementioned fabric with poor adherence moreover protects the external reinforcement against pollution, such as fingerprints, dust and such, which might render the glueing of the external reinforcement to the material to be reinforced difficult.
  • the external reinforcement can be isotropic on well-defined locations.
  • an external reinforcement at least at the locations where it is attached by means of glue, bolts or such to a beam, column or such, is provided with additional fibers which are directed otherwise than the longitudinal direction of the aforementioned majority of the fibers, it is obtained that the provision of openings in the reinforcement for passing the aforementioned bolts remains without effect on the tensile or pressing strength of the longitudinally-directed fibers.
  • openings can be provided in said external reinforcement beforehand or afterwards, for example, when manufacturing the reinforcement, more particularly by providing the fibers, previous to the hardening of the resin, in such a manner that they are arranged around the required openings.
  • the aforementioned fibers which have to provide for the additional strengthening in the external reinforcement can be formed by fabrics, warp-knit fabrics, mats, fleeces or such consisting of fibers which are arranged at least according to one direction which deviates from the longitudinal direction of the external reinforcement.
  • a fleece either electrically conducting or not, may be provided, such as, for example, a glassfiber fleece, a polyester fleece or such.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Reinforced Plastic Materials (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Hydrogenated Pyridines (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Laminated Bodies (AREA)
  • Woven Fabrics (AREA)
US10/169,105 2000-01-13 2001-01-10 Prefabricated external reinforcement plate for structural members Expired - Lifetime US6761967B2 (en)

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BE2000/0027A BE1013230A3 (nl) 2000-01-13 2000-01-13 Uitwendige wapening voor balken, kolommen, platen en dergelijke.
BE2000/0027 2000-01-13
PCT/BE2001/000005 WO2001051735A1 (en) 2000-01-13 2001-01-10 External reinforcement for beams, columns, plates and the like

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EP (1) EP1116836B1 (ru)
JP (1) JP2003519736A (ru)
KR (1) KR100648542B1 (ru)
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US20040202852A1 (en) * 2000-01-13 2004-10-14 Immo Emergo, Naamloze Vennootschap Prefabricated external reinforcement plate for structural members
US20060246329A1 (en) * 2005-04-27 2006-11-02 Gopal Ravi B Systems and methods for adaptive energy management in a fuel cell system
WO2007024688A2 (en) * 2005-08-19 2007-03-01 Millennium Cell, Inc. Hybrid hydrogen fuel systems and methods

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US7901762B2 (en) 2005-11-23 2011-03-08 Milgard Manufacturing Incorporated Pultruded component
US7875675B2 (en) 2005-11-23 2011-01-25 Milgard Manufacturing Incorporated Resin for composite structures
US8101107B2 (en) * 2005-11-23 2012-01-24 Milgard Manufacturing Incorporated Method for producing pultruded components
US8597016B2 (en) 2005-11-23 2013-12-03 Milgard Manufacturing Incorporated System for producing pultruded components
KR100614916B1 (ko) * 2006-03-16 2006-08-28 (주)넥스컴스 삽입부가 형성된 건축용 보강빔
KR100759020B1 (ko) 2006-06-29 2007-09-17 한상훈 단부정착을 위한 보강부재 및 이의 제조방법 그리고 이를이용한 콘크리트 구조물 보강공법
BE1017815A3 (nl) * 2007-10-16 2009-08-04 Immo Emergo Nv Band voor het verstevigen of herstellen van constructies.
CN101691817B (zh) * 2009-09-14 2011-01-05 华东交通大学 一种frp布材抗弯加固钢筋混凝土梁附加锚固方法
JP6222890B2 (ja) * 2012-01-06 2017-11-01 株式会社Ｌｉｘｉｌ 耐震改修壁、及び耐震改修壁の施工方法
JP6252893B2 (ja) * 2013-10-09 2017-12-27 パナソニックＩｐマネジメント株式会社 複合梁と柱材との接合構造
RU180896U1 (ru) * 2017-07-25 2018-06-29 Федеральное государственное казенное военное образовательное учреждение высшего образования "ВОЕННАЯ АКАДЕМИЯ МАТЕРИАЛЬНО-ТЕХНИЧЕСКОГО ОБЕСПЕЧЕНИЯ имени генерала армии А.В. Хрулева" Клееный составной деревянный прогон, усиленный углепластиком

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EP0859085A1 (en) * 1995-11-01 1998-08-19 Mitsubishi Rayon Co., Ltd. Method of repairing/reinforcing existing structures and anisotropic woven fabrics used therefor
US5910352A (en) * 1993-03-24 1999-06-08 Tingley; Daniel A. Wood structural member having plural multiple-fiber reinforcements
US20020034624A1 (en) * 1999-02-19 2002-03-21 Gary Allan Harpell Flexible fabric from fibrous web and discontinuous domain matrix
US6475580B1 (en) * 1994-10-06 2002-11-05 Oakbray Investment Company Limited Manufacture of elongate articles

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US5910352A (en) * 1993-03-24 1999-06-08 Tingley; Daniel A. Wood structural member having plural multiple-fiber reinforcements
US6475580B1 (en) * 1994-10-06 2002-11-05 Oakbray Investment Company Limited Manufacture of elongate articles
EP0859085A1 (en) * 1995-11-01 1998-08-19 Mitsubishi Rayon Co., Ltd. Method of repairing/reinforcing existing structures and anisotropic woven fabrics used therefor
US6387479B1 (en) * 1995-11-01 2002-05-14 Mitsubishi Rayon Co., Ltd. Method of repairing/reinforcing existing structures and anisotropic woven fabrics used therefor
EP0799951A1 (fr) * 1996-04-04 1997-10-08 Freyssinet International (Stup) Procédé de renforcement de structures de génie civil au moyen de fibres de carbone collées
US20020034624A1 (en) * 1999-02-19 2002-03-21 Gary Allan Harpell Flexible fabric from fibrous web and discontinuous domain matrix

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* Cited by examiner, † Cited by third party
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US20040202852A1 (en) * 2000-01-13 2004-10-14 Immo Emergo, Naamloze Vennootschap Prefabricated external reinforcement plate for structural members
US20060246329A1 (en) * 2005-04-27 2006-11-02 Gopal Ravi B Systems and methods for adaptive energy management in a fuel cell system
WO2007024688A2 (en) * 2005-08-19 2007-03-01 Millennium Cell, Inc. Hybrid hydrogen fuel systems and methods
WO2007024688A3 (en) * 2005-08-19 2007-06-21 Millennium Cell Inc Hybrid hydrogen fuel systems and methods

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CN1388848A (zh) 2003-01-01
CA2393993C (en) 2008-03-18
HK1042331B (zh) 2007-07-27
BR0107560A (pt) 2002-11-19
ATE356263T1 (de) 2007-03-15
MXPA02006875A (es) 2004-04-05
DE60017070T2 (de) 2007-11-22
JP2003519736A (ja) 2003-06-24
BE1013230A3 (nl) 2001-11-06
EP1116836A1 (en) 2001-07-18
AU2658101A (en) 2001-07-24
US20020193025A1 (en) 2002-12-19
WO2001051735A1 (en) 2001-07-19
US20040202852A1 (en) 2004-10-14
RU2232238C2 (ru) 2004-07-10
DK1116836T3 (da) 2005-03-14
CN1166844C (zh) 2004-09-15
BR0107560B1 (pt) 2009-05-05
PT1116836E (pt) 2007-07-20
ZA200204673B (en) 2003-06-11
KR100648542B1 (ko) 2006-11-27
ES2234516T3 (es) 2007-10-16
AU771559B2 (en) 2004-03-25
HK1042331A1 (en) 2002-08-09
DE60017070D1 (de) 2007-08-30
KR20020073130A (ko) 2002-09-19
EP1116836B1 (en) 2007-03-07
CA2393993A1 (en) 2001-07-19

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